The new drives offers 375GB/platter and come in capacities of 750GB, 640GB and 500GB. Both series feature Advanced Format, that increases the physical sector size on hard drives from 512 bytes to 4096 (4K) bytes and helps utilize the storage surface area more efficiently. Both drives feature Fluid dynamic bearing motors for silent opperation, exceptional operating shock, Thermal Fly-height Control (TFC) for better soft error rate and improved reliability, and Hitachi’s TrueTrack Technology for tracking accuracy in high shock or vibration environments.

The Travelstar 5K750 family offers 5,400 RPM, 8 MB buffer, Serial ATA 3Gb/s interface, 0.5 watts low power idle and 1.4 watts power during read/write operations and from Hitachi says, that is the next generation of their mainstream mobile hard drive. The new drive also offers the best non operating shock at 1000G/1ms to protect against bumps and rough handling in mobile environments.

The other new mobile drive Travelstar 7K750 offers 7,200 RPM, has 16MB buffer, 3Gb/s SATA interface and read/write power specification of 1.8W, from Hitachi says that users don’t have to sacrifice battery life for fast 7,200 RPM performance. The 7K750 is also a self-encrypting drive (SED), which means that encrypt data using protected keys in real time, providing users with the highest level of data protection.

Hitachi also offers Travelstar 5K750 and 7K750 EA models, designed specifically for use in blade servers, network routers and video surveillance systems, as well Hitachi Retail Hard Drive Kits, which are designed for Mac and PC users who want to replace or upgrade their internal hard drives in their notebooks or compact desktop systems.

The Travelstar 5K750 is currently shipping in volume, Travelstar 5K750 Retail Hard Drive Kits will be available in November with a suggested retail price of $129.99, while the Travelstar 5K750 EA version will be shipping by the end of the year. The 7,200 RPM Travelstar 7K750 family, including EA versions and retail kits, will be available in Q1 2011.

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